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Genealogie Bos

13 Feb 2017

Ancestor Score 2017: 78% in the 10th generation

Inspired by the Ancestor Score of other blogs, I generated my own in february 2016. Shortly after posting it, I had to remove several wrong ancestors, decreasing my score. I shouldn't have worried for I found more than enough ancestors later in 2016 to compensate for the loss! New ancestors since my first Ancestor Score include the medieval Lords of Strijen, the De Beveren family in Dordrecht, Lauweris Querijnsz van Dijck, Aelbert Aerts Craeijenstein and Jasper van Cleef. The most common surnames among my ancestors are Van Driel, Oerlemans, Spruijt, Brand, Bos, Smits, De Jong and Van der Linden.

My Ancestor Score at generation 10 in the period 1600-1722 is 77.9%. It will never reach the 100%, because some cousins intermarried in generation 7. Skipping those double ancestors, the actual number of missing ancestors in generation 10 is just 16%. The total number of my ancestors - starting with my parents (generation 2) - is now 4190.

Composition and Bandwidth of various Generations

Composition

Bandwidth *

Generation

Men

Women

Total

%

% 2016

From

Until

3

2

2

4

100

100

1892

1906

4

4

4

8

100

100

1850

1880

5

8

8

16

100

100

1804

1857

6

16

16

32

100

100

1756

1832

7

30

30

60

93.8

93.8

1724

1802

8

58

58

116

90.6

90.6

1680

1777

9

112

111

223

87.1

86.7

1645

1749

10

203

196

399

77.9

76.4

1600

1722

11

318

296

614

60.0

57.0

1565

1695

12

405

348

753

36.8

33.8

1538

1695

13

405

298

703

17.2

15.7

1505

1645

14

330

219

549

6.70

6.1

1440

1625

15

187

101

288

1.76

1.6

1440

1580

16

97

63

160

0.49

0.5

1395

1540

17

62

27

89

0.14

0.1

1365

1485

18

37

19

56

0.04

0.0

1335

1470

19

31

8

39

0.01

0.0

1305

1440

20

15

7

22

0.00

0.0

1310

1385

21

13

7

20

0.00

0.0

1285

1345

22

10

4

14

0.00

0.0

1270

1320

23

6

3

9

0.00

0.0

1240

1290

24

2

3

4

0.00

0.0

1234

1234

25

2

1

3

0.00

0.0

1215

1215

*) The Bandwidth of a generation is determined by the earliest and latest known birth or baptism date within that generation.